TextureInfo.MODE_REPLACE don't work

[Klaudiusz]

Hi,

When i use UV+Env both textures with TextureInfo.MODE_REPLACE ... its showed UV Texture only. I think this mode does nothing.

[EgonOlsen]

It does what the name implies: It replaces the texture from all the former stages with the one in the replace-stage. I'm not sure what the purpose of this may be, but it's in in OpenGL, so i've added it here too.